Dark Doors Escape Level 13 Walkthrough
a table with fax machine on left
4 digit of symbol and numbers on right wall
hint : find the missing parts from the symbol

dark doors escape stage 13 solution :
to be a full digital “8″ segment like calculator numbers, you must enter the missing parts
1st symbol : 5
2nd symbol : 2
3rd symbol : 7
4th symbol : 1
the correct answer is 5271
get the key from fax machine on table

open the door and proceed to stage 14